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当前位置: 首页 > 文章 > He-Ne激光辐照对大豆幼苗异黄酮含量的影响 吉林农业大学学报 2011,33 (3) 264-268
Position: Home > Articles > Effect of He-Ne Laser Illumination Exposition on Content of Soy Isoflavone in Its Seedling Journal of Jilin Agricultural University 2011,33 (3) 264-268

He-Ne激光辐照对大豆幼苗异黄酮含量的影响

作  者：
金丽虹;申炳俊;姚丙波;施健美;鞠殿民;田坚
单  位：
长春理工大学光电信息工程学院;长春理工大学生命科学技术学院
关键词：
大豆种子;激光辐照;大豆异黄酮;Phe含量;PAL活性
摘  要：
用波长为632.8 nm的He-Ne激光辐照大豆种子胚,研究辐照时间对发芽率、幼苗株高及幼苗子叶、叶片和茎中大豆异黄酮含量的影响。结果表明:大豆种子胚经3.6 mW/mm2激光辐照1～7 min后,其发芽率、幼苗株高、幼苗苯丙氨酸转氨酶(PAL)活性、游离苯丙氨酸(Phe)和大豆异黄酮含量均高于对照组(ck)。其中以幼苗叶辐照5 min后和子叶辐照7 min后,大豆异黄酮含量的提高最为明显,分别为42.6%和36.7%。本研究还从大豆异黄酮合成代谢起始酶PAL活性、合成前体Phe含量两方面探讨了激光辐照大豆种子胚提高其幼苗大豆异黄酮含量的机理。
译  名：
Effect of He-Ne Laser Illumination Exposition on Content of Soy Isoflavone in Its Seedling
作  者：
JIN Li-hong1,SHEN Bing-jun1,YAO Bing-bo1,SHI Jian-mei1,JU Dianmin2,TIAN Jian11.School of Life Science and Technology,Changchun University of Science and Technology,Changchun 130022,China;2.College of Optical and Electronic Information,Changchun University of Science and Technology,Changchun 130022,China
关键词：
soybean seed;exposure in laser illumination;soy isoflavone; Phe level;PAL activity
摘  要：
After soybean germs were exposed in a He-Ne laser(λ=632.8 nm) illumination,its effects on germination,height of seedlings and content of soy isoflarone in seedling cotyledon,leaves and stems with exposure time were studied.The results showed that germination,height of seedlings,activity of phenylalanine ammonia-lyase(PAL),free amino acids and content of soy isoflarone were higher than those before the germs being exposed for 1,3,5 and 7 minutes.The optimal increasememts of soy isoflavone happened in seedling leaves(42.6%) after 5 minutes and in cotyledon(36.7%) after 7 minutes exposure,respectively.Moreover,a possible mechanism for the increase of the content of soy isoflarone was also discussed with initial enzyme activity of anabolism of soy isoflarone(PAL) and synthetic precursor Phe content.

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